81.65.72 is a class C of IPs

Sample IPs from the class C 81.65.72

81.65.72.138	View precise location of 81.65.72.138 on the map!
81.65.72.19	View precise location of 81.65.72.19 on the map!
81.65.72.41	View precise location of 81.65.72.41 on the map!
81.65.72.100	View precise location of 81.65.72.100 on the map!
81.65.72.111	View precise location of 81.65.72.111 on the map!
81.65.72.47	View precise location of 81.65.72.47 on the map!
81.65.72.135	View precise location of 81.65.72.135 on the map!
81.65.72.74	View precise location of 81.65.72.74 on the map!
81.65.72.176	View precise location of 81.65.72.176 on the map!
81.65.72.187	View precise location of 81.65.72.187 on the map!
81.65.72.141	View precise location of 81.65.72.141 on the map!

10 Random IPs

155.126.65.155	Find precise map location of 155.126.65.155
128.63.97.80	Find precise map location of 128.63.97.80
199.74.133.207	Find precise map location of 199.74.133.207
3.50.49.197	Find precise map location of 3.50.49.197
239.30.10.20	Find precise map location of 239.30.10.20
38.103.119.188	Find precise map location of 38.103.119.188
119.216.200.95	Find precise map location of 119.216.200.95
123.216.41.127	Find precise map location of 123.216.41.127
64.132.174.161	Find precise map location of 64.132.174.161
81.164.187.230	Find precise map location of 81.164.187.230
93.69.167.21	Find precise map location of 93.69.167.21

TestURI.org is a free web-sniffer.net alternative. It alows you to send custom HTTP request and check the HTTP response.